Problema Solution
approximate the perimeter of a pentagon whose area measures 10 square centimeters
Answer provided by our tutors
area is 10
a petagon can be divided into a square and a triangle
let each side is a
a^2 + a*sqrt(5a^2/4)*1/2
a^2 + √5a^2/4 = 10
3.33 a^2= 10
a^2= 3
a= 1.732
perimeter= 5*a
= 8.66